US2608225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cutter with helically concentric cutting edges
Assignee: Individual
•
Filing: 1947-12-30
•
Granted: 1952-08-26
•
Expires: 1967-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ephraim H Kidder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:11
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/2239; B23C5/2243; B27; B27G; B27G13/00; B27G13/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US399107A
Cited
US1308313A
Cited
US895219A
Cited
US953359A
Cited
US1046737A
Cited
US1423192A
Cited
US1908628A
Cited
GB439926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |